XYZ Racing Drag Racing Coilovers — Scion XB bB 4WD 2003-2007

Launch a 2003-2007 Scion xB/bB 4WD off the line and the transmission’s power delivery decides whether the tyre bites or spins. The XYZ Racing Drag Racing coilover is built around that instant, one that shifts weight onto the driven wheels the moment the clutch or converter loads up.

This is a dedicated 0-400m setup, not a dual-purpose road-and-track compromise. Height and preload are set specifically to load the drive tyres hard at launch, then hold the car flat and predictable through the run.

What this coilover does for your 2003-2007 Scion XB Bb 4WD

Fit these to a Scion xB/bB 4WD and the immediate change is launch traction: the kit lets you bias ride height and spring preload so more of the car’s weight sits over the driven wheels the instant power goes down, rather than mid-corner grip. Less time spent with the tyre spinning against the strip means more of the engine’s torque actually gets converted into forward motion, which on a short 400m run is the difference between a clean 60-foot and a bogged one. Because the setting is tuned around this specific instant of load transfer, the xB/bB’s factory-soft, comfort-biased suspension geometry no longer works against the launch – the chassis settles into the weight shift instead of wallowing through it. At speed, the same geometry that manages launch grip keeps the car tracking straight rather than wandering as the suspension unloads.

About the Drag Racing Coilover

XYZ Racing’s Drag Racing range is purpose-configured for 0-400m runs across front-, rear- and four-wheel-drive platforms, which is why the Scion xB/bB 4WD application gets its own specific valving and height settings rather than a generic road-spec carryover. The core idea is deliberate front-to-rear weight transfer at launch: as the transmission puts power to the driven wheels, the coilover setting lets the car’s weight shift onto them at that exact instant, increasing tyre compression against the strip. That extra compression is what cuts idle spin at the wheel – the interval where a tyre is turning without gripping – which is dead time on a drag run. The result is a car that settles into stability at speed rather than fighting for traction after the launch, with the coilover doing the work of directing weight where the drivetrain needs it, when it needs it.

Fitment for the Scion XB Bb 4WD (2003-2007)

Built for the Scion xB/bB 4WD, chassis code SC04, covering the 2003-2007 production run. Confirm your model year falls within this window before ordering, as XYZ Racing configures the Drag Racing kit’s height and preload settings specifically for this generation’s 4WD driveline.

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Configure your Drag Racing coilover spec for the Scion xB/bB 4WD below.